Vehicle Dynamics Blockset Vehicle Body 3DOF Parameter Calculation

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Adnan Mustafa Qureshi
回答： Ayush 2023-9-28
I wanted to know if anyone could help me find the sources for equations used in the Vehicle Dynamics Blockset: Vehicle Body 3DOF (single track) model. I was unable to find out what tyre model was used, and how some of the "computed" parameters are calculated (e.g output --> info --> BdyFrm --> Cg --> Acc --> xddot).
Also, is the model linear or non-linear? As I see some MATLAB Examples using linear controllers to control the vehicle system.

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回答（1 个）

Ayush
Ayush 2023-9-28
Hi Adnan,
I understand that you want to know the underlying equations used in the Vehicle Body 3DOF Single Trackblock of the Vehicle Dynamics Blockset to identify what tyre model is used and how some of the "computed" parameters are calculated. Additionally, you would like to know if this block can be used to model linearly or non-linearly.
The Vehicle Body 3DOF block provides a simplified representation of the vehicle dynamics which uses its fundamentals principles to determine the parameters that allow real-time simulations. Please refer to the "Theory" section of the below documentation to know more about the equations used to compute the parameters in the Vehicle Body 3DOF block:
https://www.mathworks.com/help/vdynblks/ref/vehiclebody3dof.html
Furthermore, the Vehicle Dynamics Blockset supports both linear and non-linear models based on the specific application requirements. The MATLAB Examples use linear controllers for ease of understanding.
Hope it helps,
Regards,
Ayush Misra

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